bpf: Fix build in minimal configurations, again
Building with -Werror showed another failure: kernel/bpf/btf.c: In function 'btf_get_prog_ctx_type.isra.31': kernel/bpf/btf.c:3508:63: error: array subscript 0 is above array bounds of 'u8[0]' {aka 'unsigned char[0]'} [-Werror=array-bounds] ctx_type = btf_type_member(conv_struct) + bpf_ctx_convert_map[prog_type] * 2; I don't actually understand why the array is empty, but a similar fix has addressed a related problem, so I suppose we can do the same thing here. Fixes: ce27709b ("bpf: Fix build in minimal configurations") Signed-off-by:Arnd Bergmann <arnd@arndb.de> Signed-off-by:
Daniel Borkmann <daniel@iogearbox.net> Acked-by:
Martin KaFai Lau <kafai@fb.com> Link: https://lore.kernel.org/bpf/20191210203553.2941035-1-arnd@arndb.de
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